foto 2 The design idea used to create the tile was a method of force fields. In creating this seamless pattern multiple spin forces were merged together and the effect of field lines was extended for better visualization and incorporation into the water evacuation system.

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Force fields working with a different set of constraining circles.

Every line of the system is represented as an “escaping” curve. Each point tries to get away from the force field quickly, leaving those paths behind and creating the data tree structure. By playing with parameters like length, force, radius, distance in between, we could create a controlled distortion according to these field lines and force center.
Model

Water evacuation tangencies meet force fields

The tile is divided into 3 parts according to the water evacuation points on the external edges: 2, 3 and 4. The force fields were placed accordingly on splines starting from these points of reference. Model
Model

Overall composition of 6 tiles

The slope of the tile decreases gradually outwards following the rhythm of the water canals and pattern, enhancing the water evacuation. phot1   processj foto 1a The reference for the picture and original grasshopper script is:

http://www.designcoding.net/force-fields-revisited/

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Our edited grasshopper definition

To discover our milling strategy we experimented repeatedly with RhinoCam. In the end, for our design, we selected the 12 mm ballmill as it gave us the optimal finish and kept our machining time within the 2 hour limit. We first ran a horizontal roughing to carve the canals then curve machining to overlay the thin contour lines. In the end we didn’t do a perimiter engraving in order to allow for continuity of the lines over the edge and side of the tiles.
CropperCapture[2]

RhinoCam simulation strategy